---> uname -a: Linux bc1ad1e72260 3.10.0-862.14.4.el7.x86_64 #1 SMP Wed Sep 26 15:12:11 UTC 2018 x86_64 Linux ---> lscpu: Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian Address sizes: 40 bits physical, 48 bits virtual CPU(s): 4 On-line CPU(s) list: 0-3 Thread(s) per core: 1 Core(s) per socket: 1 Socket(s): 4 NUMA node(s): 1 Vendor ID: GenuineIntel CPU family: 6 Model: 44 Model name: Westmere E56xx/L56xx/X56xx (IBRS update) Stepping: 1 CPU MHz: 2933.438 BogoMIPS: 5866.87 Virtualization: VT-x Hypervisor vendor: KVM Virtualization type: full L1d cache: 128 KiB L1i cache: 128 KiB L2 cache: 16 MiB L3 cache: 64 MiB NUMA node0 CPU(s): 0-3 Vulnerability L1tf: Mitigation; PTE Inversion; VMX SMT disabled, L1D conditional cache flushes Vulnerability Meltdown: Mitigation; PTI Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl and seccomp Vulnerability Spectre v1: Mitigation; Load fences, __user pointer sanitization Vulnerability Spectre v2: Mitigation; Full retpoline Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl xtopology eagerfpu pni pclmulqdq vmx ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes hypervisor lahf_lm ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid tsc_adjust arat spec_ctrl intel_stibp ---> nproc: 4 ---> df -h: Filesystem Size Used Available Use% Mounted on overlay 50.0G 6.3G 43.7G 13% / tmpfs 64.0M 0 64.0M 0% /dev tmpfs 919.1M 0 919.1M 0% /sys/fs/cgroup shm 64.0M 0 64.0M 0% /dev/shm /dev/vda1 50.0G 6.3G 43.7G 13% /etc/resolv.conf /dev/vda1 50.0G 6.3G 43.7G 13% /etc/hostname /dev/vda1 50.0G 6.3G 43.7G 13% /etc/hosts /dev/vda1 50.0G 6.3G 43.7G 13% /w/workspace/undry_go-mod-configuration_PR-10 /dev/vda1 50.0G 6.3G 43.7G 13% /w/workspace/undry_go-mod-configuration_PR-10@tmp /dev/vda1 50.0G 6.3G 43.7G 13% /var/log/sa ---> free -m: total used free shared buff/cache available Mem: 1838 599 77 0 1161 1134 Swap: 1023 0 1023 ---> ip addr: 1: lo: mtu 65536 qdisc noqueue state UNKNOWN qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever 6: eth0@if7: mtu 1458 qdisc noqueue state UP link/ether 02:42:0a:fa:00:01 brd ff:ff:ff:ff:ff:ff inet 10.250.0.1/24 brd 10.250.0.255 scope global eth0 valid_lft forever preferred_lft forever ---> sar -b -r -n DEV: Linux 3.10.0-862.14.4.el7.x86_64 (centos-7-docker-5bc7e375-1660-33dc-fe50-cb0f4dbfa1d5.vexxhost.ne) 03/18/20 _x86_64_ (4 CPU) 17:18:47 LINUX RESTART 17:19:01 tps rtps wtps bread/s bwrtn/s 17:20:01 158.29 83.69 74.60 6755.79 37213.72 17:21:01 8.53 0.00 8.53 0.00 1732.52 17:22:01 0.48 0.00 0.48 0.00 7.43 17:23:01 0.23 0.00 0.23 0.00 3.05 17:24:01 0.25 0.00 0.25 0.00 3.46 Average: 33.57 16.74 16.82 1351.74 7795.23 17:19:01 kbmemfree kbmemused %memused kbbuffers kbcached kbcommit %commit kbactive kbinact kbdirty 17:20:01 117868 1764436 93.74 2620 1234036 922500 31.48 428356 1178844 48588 17:21:01 122356 1759948 93.50 2620 1234068 893184 30.47 423236 1178684 16 17:22:01 121736 1760568 93.53 2620 1234080 893388 30.48 424408 1178672 20 17:23:01 122868 1759436 93.47 2620 1234080 893184 30.47 423384 1178620 12 17:24:01 121344 1760960 93.55 2620 1234088 893400 30.48 424684 1178620 16 Average: 121234 1761070 93.56 2620 1234070 899131 30.68 424814 1178688 9730 17:19:01 IFACE rxpck/s txpck/s rxkB/s txkB/s rxcmp/s txcmp/s rxmcst/s 17:20:01 eth0 422.39 305.51 999.06 85.91 0.00 0.00 0.00 17:20:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:20:01 docker0 0.65 0.62 0.10 0.54 0.00 0.00 0.00 17:21:01 eth0 0.93 0.12 0.06 0.01 0.00 0.00 0.00 17:21:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:21:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:22:01 eth0 0.73 0.43 0.29 0.18 0.00 0.00 0.00 17:22:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:22:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:23:01 eth0 0.43 0.10 0.04 0.04 0.00 0.00 0.00 17:23:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:23:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:24:01 eth0 0.43 0.30 0.27 0.20 0.00 0.00 0.00 17:24:01 lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17:24:01 docker0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: eth0 85.02 61.32 200.03 17.27 0.00 0.00 0.00 Average: lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average: docker0 0.13 0.12 0.02 0.11 0.00 0.00 0.00 ---> sar -P ALL: Linux 3.10.0-862.14.4.el7.x86_64 (centos-7-docker-5bc7e375-1660-33dc-fe50-cb0f4dbfa1d5.vexxhost.ne) 03/18/20 _x86_64_ (4 CPU) 17:18:47 LINUX RESTART 17:19:01 CPU %user %nice %system %iowait %steal %idle 17:20:01 all 14.17 0.00 7.70 8.00 0.03 70.10 17:20:01 0 14.69 0.00 8.12 6.47 0.03 70.69 17:20:01 1 15.93 0.00 7.86 7.09 0.03 69.09 17:20:01 2 12.73 0.00 7.06 10.57 0.02 69.63 17:20:01 3 13.33 0.00 7.75 7.90 0.02 71.01 17:21:01 all 0.21 0.00 0.10 0.00 0.00 99.69 17:21:01 0 0.55 0.00 0.07 0.00 0.00 99.38 17:21:01 1 0.12 0.00 0.07 0.00 0.02 99.80 17:21:01 2 0.13 0.00 0.12 0.00 0.00 99.75 17:21:01 3 0.07 0.00 0.13 0.00 0.00 99.80 17:22:01 all 0.20 0.00 0.05 0.00 0.00 99.74 17:22:01 0 0.57 0.00 0.07 0.00 0.00 99.37 17:22:01 1 0.12 0.00 0.07 0.00 0.00 99.82 17:22:01 2 0.07 0.00 0.05 0.00 0.00 99.88 17:22:01 3 0.07 0.00 0.05 0.00 0.00 99.88 17:23:01 all 0.17 0.00 0.06 0.00 0.00 99.77 17:23:01 0 0.55 0.00 0.07 0.00 0.00 99.38 17:23:01 1 0.08 0.00 0.08 0.00 0.00 99.83 17:23:01 2 0.03 0.00 0.02 0.00 0.00 99.95 17:23:01 3 0.02 0.00 0.05 0.00 0.00 99.93 17:24:01 all 0.20 0.00 0.06 0.00 0.00 99.74 17:24:01 0 0.53 0.00 0.03 0.00 0.00 99.43 17:24:01 1 0.08 0.00 0.08 0.00 0.00 99.83 17:24:01 2 0.08 0.00 0.07 0.00 0.00 99.85 17:24:01 3 0.10 0.00 0.07 0.00 0.00 99.83 Average: all 2.96 0.00 1.58 1.59 0.01 93.87 Average: 0 3.35 0.00 1.65 1.28 0.01 93.71 Average: 1 3.24 0.00 1.62 1.41 0.01 93.72 Average: 2 2.58 0.00 1.45 2.09 0.00 93.87 Average: 3 2.68 0.00 1.59 1.56 0.00 94.16